Trimming apparatus



July 28, 1925. 1,547,318

P. R. GLASS TRIMM ING APPARATUS Filed Feb. 25, 1921 Patented July 28, 1925.

UNITED STATES PATENT OFFICE.

" PERLEY R. GLASS, OF WAYLAND, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- OHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed February 23,1921.

T 0 all whom it may concern Be it known that I, PERLEY R. GLAss, a citizen of the United States, and resident of \Vayland, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Trimming Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, likereference characters on the drawings indicating like parts in the several figures.

t This invention relates to trimming apparatus, and is illustrated as embodied in a device for trimming the covers of heels which are attached to shoes.

According to one process of manufacturing shoes with-covered heels, the heels are attached to the shoes before the heels are covered. The coverblanks are then attached to the heels with surplus cover material projecting above thetops or heel seat faces of the heelsand overlapping the shoe upper. This projecting surplus material of each heel cover is then .trimmed, to leave a margin of a suitable width to be tucked into the rand crease. Thereafter the part of the cover which projects below the bottom or tread surface of the heel maybe folded in and held by fastening a top-lift thereover.

An object of this invention is to improve trimming apparatus of a type suitable for trimming heel covers to remove the surplus material above referred to. To this end, the illustrated construction comprises cooperating shear members, of which one may be stationary and theother reciprocable, and a gage or guide to direct the covered heel past the shear members. A feature of the invention is to be found in the use of a stationary shear member having a projection which engages the heel at thefrand crease, to prevent leaving a margin .of'less width than the minimum which can be tucked into the rand crease. Another feature is the use of a gage or guidecomprising an adjustable'clamp, and a novel guide-portion connected thereto by a spring.

Other features are to be found in various combinations and specific constructions which are pointed out in the appended claims, and which are shown in the accompanying drawings, in which 7 Egg. 1 is a perspective, partly broken away, of a heel-covering machine comprising my improved trimming apparatus;

TRIMMING APPARATIVTS.

Serial No. 447,081.

Fig.2lis cross-section of the apparatus, wlth a sho-ein co-operative relation thereto; 7 F g. 3 is a perspective of the stationary shear member; and V Fig. 4: is a perspective of the guide or gage I In the illustrated machine, an upright 10 1s vertically adjustable in a base standard 12. From this upright project three arms 14, 16 and 18. Upon a bracket 20 carried by arm 14 is a work preparing member 26, held on a rotatable spindle 22 by a screw 2 This member isused to open the rand crease before th-e cover is applied, toprepare it for tucking in the margin of the cover; and after the cover is applied to the heel, it is again used to press the covering somewhatinto the rand crease, to form a creaseor mark in the cover which may be followed in trimming the heel covering.

A main drive shaft is rotated from any convenient source of power by a belt acting on the pulley 36. Suitable connections from this shaft rotate the spindle 22 carrying the work-preparing member 26. Carried at the right-hand extremity of the main drive shaft is a beating member 42, which may be used to pound and smooth the heel preparatory to placing the covering upon it.

At the forward end of arm '18 is a trans-" verse extension 52 in which is journaled a shaft 54:, driven by belt 56. .At the left-hand end of this extension is the trimming apparatus in-which my. invention is shown as embodied, and which is further described below. By the use of. this apparatus, the

surplus covering material is removed, leaving a margin to be tucked into the rand crease byv thetucking mechanism shown at 120, 134. Thereafterthe covered heel is smoothed by a finishing tool 150.

All of. the foregoing parts, with the exception ofthe ltrimming apparatus, may be the same as parts bearing the same reference charactersas shown in United States Letters Patent No. -1,48,738, granted March 20, 1923, .on my application filed Sept. 9, 1918, and for that reason will not, be described herein.'

The trimming apparatus comprises a stationary shear member 70, a reciprocable shear member 58, and a gage or guide 74. The stationary shear member is shown in detail in Fig. 3. It comprisesa work supporting portion 6.8,. a cutting edge 66, and

a surface Get to guide the severed material away from the apparatus. At is shown projection, just in advance of the cutting edge, which has the-double function of supporting that portion of the heel-covering next to be cut, and of forming a minimumwidth gage to contact with the heel, in the rand crease, when the margin left by the ..rimming is just suflicient to tuck into the rand crease.

The. reciprocable, shear member 58 slides in Ways in the casing, to insure rectilinear motion, and carries a cutting portion 59 at its lower end by a screw-and-slot connection 60, which permits of adjustment as the portion.59 is groundaway in sharpening. The

shear is reciprocated by aslide .61 and an eccentric pin or crank 62, and is held in position by cover plate 63'.

The guide 74 comprises a clamp 76, which surrounds extension 52 and may be moved back and forth thereon to vary the, width of margin left on the heel cover to be tucked into the rand crease. In a channel 78 in the clamp there is a slide 80, which carries a guide roller 82 arranged to follow the crease or mark in the heel covering over the rand crease. The clamp 76 and slide are, con,- nected' by a spring. 84, which tends to push them apart. The'slide 80 bears a pin 86, which is engaged by a limiting slot 88 in a plate 90. The plate 90 is secured to the clamp? 6 by screw-and-slot connections 92, which permit adjustment of the limiting positions of pin 86, and therefore slide 80, relatively to clamp 76,

7 It will be. noted. that the guide roll 82, and the worksupporting portion 68 of the stationary shear member 70, are so formed and arranged that theyconform to the contour of a shoe, andfdo not tend .to disturb the heel covering by lifting it away from the shoe asit is trimmed. It will beobvious that variationin the form and arrangement ofparts is feasible, andwhile one embodiment of my invention has been described in detail, itis not the intention to limit its scope thereby.

Having described.my invention what I claim as new and desire to secure by Letters Patent of the United States is:

l 1 In an apparatus for trimming thecovers of heels attachedto shoes, in combination, co-operating shear members to sever the heel covers, to remove sur lus cover. material which overlies the shoe uppers, and a snide to ride in the. rand crease of the shoe, the guide being adjustable with reference to said members to vary the Width of the margin left after trimming to be tucked into the anct cre s 2. An apparatus for trimming off the surplus material of heel coverings whichproject abcvethe tops of the. heels attached to shoes and closely overlie the shoe uppers comprising, in combination, a. shoe guide, a stationary shear member having a thin portion shaped to conform to the contour of the shoe upper adjacent to the heel and adapted to be inserted between the shoe upper and the overlying surplus material of the heel covering to support said material without distorting it, and a shear member reciprocable in a direction normal to said portion and to the surface of a shoe guided. by said guide for co-operating with the stationary shear member.

3. In an. apparatus for trimming off the surplus material of heel covers which project above the tops of heels attached to shoes, in combination, movable shear member, a stationary shear member to cooperate therewith in trimming the covers and having a projection, to engage the heels to insure leaving tucking margins of at least a minimum width, and a guide to follow creases in the, covers over the rand; creases of the shoes, adjustable to vary the Width of the tucking margins.

4. In an apparatus for trimming the covers of heels. attached to shoes, in combination, trimming means for removing surplus cover material v vhich overlies the shoe uppers, an adjustable margin gage, and a minimum margin-width gage.

5. In an apparatus for trimming the covers of heels attached to shoes to remove the surplus cover material; which projects above the tops of the. heels, in combination, a movable shear member, a stationary shear member having a cover-supporting portion, and a. rand-crease guide, said guide and the cover-supporting portion of the shear member being formed and arranged to conform to the contour of a shoe, to avoid distorting the cover as it is trimmed by forcing it outwardly from the shoe.

6. In an apparatus for trimming the covers of heels attached to shoes to remove the surplus cover material which projects above the tops of the heels, in combination, heelcover trimming means, a gage device comprising a clamp movable to vary the position of heels relatively to said means, a

guide to follow a crease in theheel cover immediately over the rand crease, and a spring connection between the clamp and the guide.

7. In an apparatus for trimmingrthe covers of heels attached to shoes to-remove the surplus cover material whichprojects above the tops of the heels, in combination, heelcover trimming means, a gage device comprising a clamp movable to vary the position of heels relatively to said means, and a roller guide to follow a crease in theheelcover immediately over the rand creaseiof the shoe.

8. In an apparatus for trimming the covers of heels attached- ,to shoes to remove the surplus cover material which projects above the tops of the heels, in combination, a stationary shear member having a work-supporting portion and a cutting edge, a reciprocating shear member to co-operate therewith in trimming heel covers, and a rand-crease guide on the opposite side of the reciprocating shear member from the stationary shear member.

9. In an apparatus for trimming heel covers, in combination, a reciprocating shear member having a cutting edge, and a stationary shear member having a cutting edge to co-operate therewith to remove surplus cover material projecting above the tops of the heels and having a projection in advance of the cut-ting edge to support the portion of the cover next to be cut and also to act as a gage to prevent leaving a margin of less than minimum width.

10. In an apparatus for trimming the covers of heels attached to shoes to remove the surplus cover material which projects above the tops of the heels, a stationary shear member having a cutting edge, a guide surface adjacent thereto for the surplus material, and a work supporting projection in advance of the cutting edge, in combination with a reciprocating shearmember having a cutting edge to co-operate with the stationary cutting edge to trim the heel covers.

11. In an apparatus for operating on heels attached to shoes, a guiding device compris ing a clamp which may be moved to change the posit-ion of a heel guided by the device, said clamp having a channel formed therein, a gage reciprocable in said channel and having a pin in the outer surface thereof, a spring in said channel and tending to push the gagetherefrom, and an adjustable plate to engage said pin to limit the movement of said gage.

12. In an apparatus for operating on heels attached to shoes, a guiding device comprising a movable clamp, a guide roll to ride progressively in the rand crease, and a spring connection between said clamp and said roll permitting the roll to yield in a plane subing opposite sides of the overlapping margins of the heel coverings, means for effecting relative reciprocation of the shear members, a'guide to ride in the rand crease of the shoe, the guide being adjustable relatively to the shear members to Vary the width of the margin left after trimming, and a mounting for the guide adapting the guide to yield, in a direction parallel to the plane of relative reciprocation of the shear members.

14. In a trimming apparatus, a stationary shear member comprising a portion to be inserted beneath'the edge of a covering on an attached heel, a surface to guide away the surplus covering material as it is trimmed, a cutting edge adjacent to the guiding surface, and a projection in advance of the cutting edge to support the material next to be cut and to engage the rand crease as a gage determining the minimum width of covering to be left by the trimming operation. 1

15. In a trimming apparatus, a stationary shear member having a portion to be inserted beneath the work without disturbing it to support the work, a shoe guide arranged to engage the work at the side opposite that engaged by the stationary shear member to detern'iine the location of the trimming cut,

and a movable shear member to co-operate with the stationary shear member and reciprocable in a dlrection normal to SELlCl'POTtlOIl and to the surface of a shoe guided by said VPERLEY R. GLASS. 

